A week ago I had chest pain,along with lightheadedness,headaches and fatigue that I have been dealing with for 2 months,blood samples were taken,I stayed overnight in hospital with nurse adding a saline drip ,and nuclear stress test in morning,well stress test showed I have a healthy heart,but blood test showed I had low sodium in blood and I was dehydrated,the thing is I stared taking lisinipril a little over 2months ago ,could it be the cause for my problem?